Chemistry: Structure and bonding
- Created by: Catherine
- Created on: 20-04-13 13:57
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- Chemistry: Structure and Bonding
- chemical bonding
- covalent bonding
- non metal elements sharing electrons
- ionic bonding
- metals and non metals lose and gain electtrons
- non metals gain electrons
- this results in charged ions
- metals lose electtrons
- this results in charged ions
- non metals gain electrons
- metals and non metals lose and gain electtrons
- covalent bonding
- Ionic bonding
- holds ions together in giant structures
- electrostatic forces in all directions
- e.g. sodium chloride is a giant cubic lattice
- ratio of ions depends on charge of the ions
- positive and negative must balance
- holds ions together in giant structures
- covalent bonding
- non metals need to gain electrons to become stable
- they do this by sharing electrons
- atoms joined together by covalent bonds form molecules
- Group 7 elements need to gain one electron
- Group 6 elements need to gain two electrons, and so on
- a covalent bond acts only between the atoms it connects
- so many covalent substances consist of small molecules
- some atoms can form several bonds (e.g. carbon)
- these join together in giant covalent structures
- giant covalent structures are sometimes referred to as macromolecules
- these join together in giant covalent structures
- non metals need to gain electrons to become stable
- metals
- atoms in a metallic element are all the same size
- metallic atoms form giant structures
- arranged in regular patterns
- metallic bonding
- Chemistry: Structure and Bonding
- chemical bonding
- covalent bonding
- non metal elements sharing electrons
- ionic bonding
- metals and non metals lose and gain electtrons
- non metals gain electrons
- metals lose electtrons
- non metals gain electrons
- metals and non metals lose and gain electtrons
- covalent bonding
- Ionic bonding
- holds ions together in giant structures
- electrostatic forces in all directions
- e.g. sodium chloride is a giant cubic lattice
- ratio of ions depends on charge of the ions
- positive and negative must balance
- holds ions together in giant structures
- covalent bonding
- non metals need to gain electrons to become stable
- they do this by sharing electrons
- atoms joined together by covalent bonds form molecules
- Group 7 elements need to gain one electron
- Group 6 elements need to gain two electrons, and so on
- a covalent bond acts only between the atoms it connects
- so many covalent substances consist of small molecules
- some atoms can form several bonds (e.g. carbon)
- these join together in giant covalent structures
- giant covalent structures are sometimes referred to as macromolecules
- these join together in giant covalent structures
- non metals need to gain electrons to become stable
- metals
- atoms in a metallic element are all the same size
- metallic atoms form giant structures
- arranged in regular patterns
- metallic bonding
- atoms pack together and outer electrons delocalise
- this produce a sea of moving electrons between atoms
- delocalised electrons strongly attract the positive ions and hold the structure together
- atoms pack together and outer electrons delocalise
- chemical bonding
- atoms pack together and outer electrons delocalise
- this produce a sea of moving electrons between atoms
- delocalised electrons strongly attract the positive ions and hold the structure together
- Chemistry: Structure and Bonding
- chemical bonding
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